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GCD to perform task in main thread
I have a callback which might come from any thread. When I get this callback, then I would like to perform a certain task on the main thread.
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Loop inside React JSX
...
Think of it like you're just calling JavaScript functions. You can't use a for loop where the arguments to a function call would go:
return tbody(
for (var i = 0; i < numrows; i++) {
ObjectRow()
}
)
See how the function tbody is bei...
How to “comment-out” (add comment) in a batch/cmd?
...orrect answer. When using syntax highlighting the REM command does not actually highlight the text as "commented out".
– Automatico
May 29 '14 at 8:42
17
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What is Clojure useful for? [closed]
...ing around with OpenGL
Writing async webservers
HTML Templating
Running parallel tasks (fetching multiple URLs and process in parallel)
Playing around with real time audio
Simulations
That's the practical / fun stuff.
But Clojure has plenty of theoretical depth as well. Ideas that will become inc...
Div width 100% minus fixed amount of pixels
...R: Yes, that works also, and is easier to use as you don't have to overide all settings of the less specific rule. The answer was written when the support for the > operator was still not good enough to be reliable.
– Guffa
May 22 '13 at 17:14
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Zoom in on a point (using scale and translate)
...-(zoomPointX * scalechange);
offsetY = -(zoomPointY * scalechange);
So really you can just pan over down and to the right when you zoom in, by a factor of how much you zoomed in, relative to the point you zoomed at.
shar...
Troubleshooting “The use statement with non-compound name … has no effect”
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PHP's use isn't the same as C++'s using namespace; it allows you to define an alias, not to "import" a namespace and thus henceforth omit the namespace qualifier altogether.
So, you could do:
use Blog\Article as BA;
... to shorten it, but you cannot get rid of it entirely.
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SQL update trigger only when column is modified
...ue, if new value equal to old value in one or multi row, solution 1 update all updated row in Schedule table but solution 2 update only schedule rows that old value not equal to new value.
share
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i...
ImportError: No module named site on Windows
I am trying to install Python for the first time. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
getApplication() vs. getApplicationContext()
...nt the Application class you registered in the Manifest, you should never call getApplicationContext() and cast it to your application, because it may not be the application instance (which you obviously experienced with the test framework).
Why does getApplicationContext() exist in the first place...